<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>

<div id="app">
  <div v-if="book.length">
    <table border="1" cellspacing="0" cellpadding="0">
        <tr>
          <th></th>
          <th>书籍名称</th>
          <th>出版日期</th>
          <th>价格</th>
          <th>购买数量</th>
          <th>操作</th>
        </tr>
      <tbody>
      <tr v-for="(item,index) in book">
        <td>{{item.id}}</td>
        <td>{{item.name}}</td>
        <td>{{item.data}}</td>
        <!--      过滤器写法-->
        <!--      <td>{{item.price |过滤器 }}</td>-->
        <td>{{item.price | showPrice}}</td>
        <td><button @click="decrement(index)" v-bind:disabled="item.count<=1">-</button>{{item.count}}
          <button @click="increment(index)">+</button></td>
        <td><button v-on:click="deleteClick(index)">移除</button></td>
      </tr>
      </tbody>
    </table>
  </div>
  <h2 v-if="book.length">总价为：{{totalPrice|showPrice}}</h2>
  <h2 v-else>购物车为空</h2>
</div>
<script src="../../js/vue.js"></script>
<script src="index.js"></script>
</body>
</html>